A joint model for the dependence between clustered times to tumor progression and deaths: a meta-analysis of chemotherapy in head and neck cancer. Rondeau V et al, on behalf of the MACH-NC collaborative Group. Stat Methods Med Res 2011. (PMID: 22025414)

Individual patient-versus literature-based meta-analysis of survival data: time to event and event rate at a particular time can make a difference, an example based on head and neck cancer. Duchateau L et al. Control Clin Trials 2001 (PMID: 11578787)

Estimating numbers of event from the Kaplan-Meier curve for incorporation in a literature-based meta-analysis: what you see is what you can't get! Duchateau L et al. Biometrics 2000 (PMID: 10985232)